package com.didi.gulimall.config;

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.Exchange;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.TopicExchange;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

/**
 * @author 10626
 */
@Configuration
public class MyMQConfig {


    /**
     * //@Bean Binding，Queue，Exchange
     * rollback 只回滚Oder
     * release 全部回滚
     */

    /**
     * 容器中的 Binding，Queue，Exchange 都会自动创建（RabbitMQ没有的情况）
     * RabbitMQ 只要有。@Bean声明属性发生变化也不会覆盖
     *
     * @return
     */
    @Bean
    public Queue orderDelayQueue() {

        Map<String, Object> arguments = new HashMap<>();
        /**
         * x-dead-letter-exchange: order-event-exchange
         * x-dead-letter-routing-key: order.release.order
         * x-message-ttl: 60000
         */
        arguments.put("x-dead-letter-exchange", "order-event-exchange");
        arguments.put("x-dead-letter-routing-key", "order.rollback.order");
        arguments.put("x-message-ttl", 60000);
        //String name, boolean durable, boolean exclusive, boolean autoDelete, Map<String, Object> arguments
        return new Queue("order.delay.queue", true, false, false, arguments);
    }

    @Bean
    public Queue orderReleaseOrderQueue() {
        return new Queue("order.release.order.queue", true, false, false);
    }


    @Bean
    public Exchange orderEventExchange() {
        //String name, boolean durable, boolean autoDelete, Map<String, Object> arguments
        return new TopicExchange("order-event-exchange", true, false);
    }

    @Bean
    public Binding orderCreateOrderBinding() {
        //String destination, DestinationType destinationType, String exchange, String routingKey,
        //			Map<String, Object> arguments
        return new Binding("order.delay.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.create.order",
                null);
    }

    @Bean
    public Binding orderReleaseAllBinding() {
        return new Binding("order.release.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.rollback.order",
                null);
    }


    @Bean
    public Queue orderSeckillOrderQueue() {
        //String name, boolean durable, boolean exclusive, boolean autoDelete, Map<String, Object> arguments
        return new Queue("order.seckill.order.queue", true, false, false);
    }

    @Bean
    public Binding orderSeckillOrderQueueBinding() {
        /**
         * String destination, DestinationType destinationType, String exchange, String routingKey,
         * 			Map<String, Object> arguments
         */
        return new Binding("order.seckill.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.seckill.order",
                null);
    }

}
